I thought these bikes were 14:1.
Anyway, to get a consistent reading, put a couple drops of oil down the sparking plug hole.
The 300 I had before consistently read 180-185psi. My 200 before that read similarly.
Ron @ RB Designs did the squish band mod on my 250. He requested that I perform a compression test before sending him the head. He was not surprised by the reading.
Bottom line, if you get consistent readings you're probably fine, as long as it runs fine.
__________________
Mike Sheetz
OMRA #21AA
What will I be riding next? Christini GG 300?
'15 KTM 300 XC-W
'08 EC 250 (Gone to new happy owner)
Gran Prix Cycle
LTR Suspension
RB-Designs
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